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hypertech

689 views 3 replies 2 participants last post by  Speedyboy487 
#1 ·
Okay I put a hypertech 3 tuner on my early 99 psd..I was wondering if a boost fooler would make that much of a difference?
 
#2 ·
I have a hyperpac and that would throw an overboost code. If your not getting a CEL than if wouldnt really make a difference. What are your boost numbers on stage 3
 
#3 ·
My boost gauge isnt workin Have to get a new one but SEL is comin on.
 
#4 ·
If you have a code reader i would check and see if it is the overboost code that is being thown. If it is than get a boost fooler so it wont defuel anymore.
 
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